Update free-courses-hi.md (#7206)

* Update free-courses-hi.md

* Update free-courses-hi.md

* fix: using playlist url

Co-authored-by: David Ordás <3125580+davorpa@users.noreply.github.com>

courses/free-courses-hi.md

@@ -77,6 +77,7 @@
 * [C++ Tutorial For Begineers In Hindi](https://www.youtube.com/playlist?list=PLnSDvcENZlwA6YDSfoieM1bl-Y3ALcnL5) - Abhishek Shrivastava, Micro Solution
 * [C++ Tutorial for Beginners \| C++ Tutorials In Hindi](https://www.youtube.com/playlist?list=PLmGElG-9wxc8VMy1nNHDQldH2dU8Y08s7) - Manish Gehlot, WsCube Tech Programming Concepts
 * [C++ Tutorials In Hindi](https://www.youtube.com/playlist?list=PLu0W_9lII9agpFUAlPFe_VNSlXW5uE0YL) - CodeWithHarry
+* [Complete C++ Placement DSA Course Hindi](https://www.youtube.com/playlist?list=PLDzeHZWIZsTryvtXdMr6rPh4IDexB5NIA) - CodeHelp by Love Babbar
 * [The Complete C++ Course \| Hindi](https://www.youtube.com/playlist?list=PLLYz8uHU480j37APNXBdPz7YzAi4XlQUF) - Saurabh Shukla